C控制鼠标动作.docxVIP

C#控制鼠标动作可以通过两个函数操作鼠标： [DllImport(user32.dll)]??????????static?extern?bool?SetCursorPos(int?X,?int?Y);??????????[DllImport(user32.dll)]??????????static?extern?void?mouse_event(MouseEventFlag?flags,?int?dx,?int?dy,?uint?data,?UIntPtr?extraInfo);??????????[Flags]??????????enum?MouseEventFlag?:?uint??????????{??????????????Move?=?0x0001,??????????????LeftDown?=?0x0002,??????????????LeftUp?=?0x0004,??????????????RightDown?=?0x0008,??????????????RightUp?=?0x0010,??????????????MiddleDown?=?0x0020,??????????????MiddleUp?=?0x0040,??????????????XDown?=?0x0080,??????????????XUp?=?0x0100,??????????????Wheel?=?0x0800,??????????????VirtualDesk?=?0x4000,??????????????Absolute?=?0x8000??????????}??SetCursorPos使鼠标移动到指定位置；mouse_event使用MouseEventFlag枚举中的Move，也可以使鼠标移动。?mouse_event中使用不同的枚举值可以模拟不同的鼠标事件。值得注意的是有几点：1. 我们不能用mouse_event(MouseEventFlag.LeftDown, 10, 10, 0, UIntPtr.Zero);去模拟在(10, 10)处的左键事件，我们需要把这步拆成两步：第一步：移动鼠标到(10,10)处，用SetCursorPos(10, 10);第二步：触发左键，用mouse_event(MouseEventFlag.LeftDown, 0, 0, 0, UIntPtr.Zero);本质上是两步的事件，不能把window API 想的太聪明，认为它会自动跑到(10,10)处，再左键?2. MouseEventFlag的枚举值可以多个一起用，使用 | 操作符鼠标左键按下和松开两个事件的组合即一次单击：?mouse_event (MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, 0, 0, 0, 0 )两次连续的鼠标左键单击事件构成一次鼠标双击事件：?mouse_event (MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, 0, 0, 0, 0 )mouse_event (MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, 0, 0, 0, 0 )3. MouseEventFlag中有个Absolute枚举，如果没指定Absolute，则mouse_event的操作是相对于上次鼠标所在的位置；如果指定了Absolute，则是相对于整个屏幕坐标的位置。这里要注意，指定Absolute，鼠标的坐标会被约束在[0, 65535]之间。0即对应屏幕左，65535即对应屏幕右下角。MSDN原话如下：If MOUSEEVENTF_ABSOLUTE value is specified,?dx?and?dy?contain normalized absolute coordinates between 0 and 65,535. The event procedure maps these coordinates onto the display surface. Coordinate (0,0) maps onto the upper-left corner of the display surface, (65535,65535) maps onto the lower-right corner.所以模拟在(10, 10)处的左键，代码应改为：mouse_event(MOUSEEVENTF_LEFTDOWN, 10 * 65536 /?Screen.PrimaryScreen.Bounds.Width, 10 * 65536 /Screen.PrimaryScreen.Bounds.Height, 0, 0);如果显示器是一拖